A recent study led by Chinese scientists, published in Nature Genetics, identified a key susceptibility gene called GSL5 linked to clubroot disease, often described as the “cancer” of cruciferous crops.
The research, conducted by the Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, shows that GSL5 is hijacked by the pathogen Plasmodiophora brassicae, which causes the disease. This hijacking suppresses immune responses in the plants, enabling the disease to proliferate.
The researchers used genome editing to knock out the GSL5 gene in cruciferous plants, which resulted in broad-spectrum and high-level resistance to various pathotypes of the pathogen without negative effects on plant growth or seed yield.
This discovery provides durable resistance resources for controlling clubroot disease and offers new insights into plant defense mechanisms against invasive eukaryotic protozoon pathogens.
Clubroot disease causes substantial yield losses globally, affecting over 1.3 million hectares in China alone annually. Traditional methods struggle due to long breeding cycles and the loss of resistance.
This gene editing approach offers an efficient and sustainable strategy for breeding resistant cruciferous crops such as rapeseed, Chinese cabbage, and broccoli .
Summary of key points:
- Gene identified: GSL5, a susceptibility gene exploited by the pathogen.
- Pathogen: Plasmodiophora brassicae, a protozoon causing clubroot disease.
- Method: Genome editing knockout of GSL5.
- Outcome: Broad, durable resistance without yield penalty.
- Crop impact: Cruciferous vegetables and oil crops, important globally and in China.
- Published in: Nature Genetics, 2025 .
